84777780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21089}}^1$

素因数の和:21168

約数の個数: 48

約数和(自身を含む): 240932160

約数和(自身を除く): 156154380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 21089, 42178, 63267, 84356, 105445, 126534, 210890, 253068, 316335, 421780, 632670, 1265340, 1412963, 2825926, 4238889, 5651852, 7064815, 8477778, 14129630, 16955556, 21194445, 28259260, 42388890, 84777780]

約数ペア:

[(1, 84777780), (2, 42388890), (3, 28259260), (4, 21194445), (5, 16955556), (6, 14129630), (10, 8477778), (12, 7064815), (15, 5651852), (20, 4238889), (30, 2825926), (60, 1412963), (67, 1265340), (134, 632670), (201, 421780), (268, 316335), (335, 253068), (402, 210890), (670, 126534), (804, 105445), (1005, 84356), (1340, 63267), (2010, 42178), (4020, 21089)]